Plugin Error

Errors in plugins? Retry to Update or Configure.

Net::HTTPServerException
400 "Bad Request"
/usr/local/lib/ruby/2.5.0/net/http/response.rb:122:in `error!'
(plugin/amazon.rb):100:in `amazon_fetch'
(plugin/amazon.rb):96:in `amazon_fetch'
(plugin/amazon.rb):123:in `block in amazon_call_ecs'
/usr/local/lib/ruby/2.5.0/timeout.rb:93:in `block in timeout'
/usr/local/lib/ruby/2.5.0/timeout.rb:33:in `block in catch'
/usr/local/lib/ruby/2.5.0/timeout.rb:33:in `catch'
/usr/local/lib/ruby/2.5.0/timeout.rb:33:in `catch'
/usr/local/lib/ruby/2.5.0/timeout.rb:108:in `timeout'
(plugin/amazon.rb):122:in `amazon_call_ecs'
(plugin/amazon.rb):284:in `rescue in amazon_get'
(plugin/amazon.rb):281:in `amazon_get'
(plugin/amazon.rb):386:in `isbn_image'
(TDiary::Plugin#eval_src):1693:in `block in eval_src'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/plugin.rb:106:in `eval'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/plugin.rb:106:in `block in eval_src'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/core_ext.rb:120:in `block in safe'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/core_ext.rb:122:in `safe'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/plugin.rb:105:in `eval_src'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/base.rb:65:in `do_eval_rhtml'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/base.rb:29:in `eval_rhtml'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/view.rb:243:in `eval_rhtml'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/dispatcher/index_main.rb:37:in `run'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/dispatcher/index_main.rb:5:in `run'
/home/arton/public_html/tdiary-v5.0.3/lib/tdiary/dispatcher.rb:25:in `dispatch_cgi'
/home/arton/public_html/diary/index.rb:32:in `<main>'